Soil-pulverizer



UNrrED ,STATES PATENT OFFICE.

EDWIN E. PORTER, OF CANAL FULTON, OHIO.

SOIL-PULVERIZER.

SPECIFICATION forming part of Letters Patent No. 619,219, dated February *7, 1899. Application filed December 16, 1897.` Serial No. 662,191. (No model.)

To all whom it may concern:

Be it known that I, EDWIN E.' PORTER, a citizen of the United States, residing at Canal Fulton, in the county of Stark and State of Ohio, have invented a certain new and useful Improvement in Soil-Pulverizers, of which the following is a specification.

The invention has reference to new and useful improvements in soil-pulverizers.

One of the objects of my invention is to produce a machine of the type referred to that may be readily and quickly turned from its line of travel in the field to any other that may be desired or found necessary Without digging or scraping the ground at the point where the machine is located when the change in its course is made. To accomplish this object, I form the roller proper of the pulverizer in a series of sections of narrow Width and mount each sectional roll upon a suitable transverse shaft for independent rotary movement. By this method of construction the machine is enabled to be turned at any angle from its course with perfect ease and without digging or scraping the soil, as the several sections rotating independently of each other are capable of carrying the various portions of the machine at their respective degrees of speed during the act of turning, the roll-section upon the extreme end of the frame rotating at a maximum speed and the inner sectional rolls decreasing in velocity in proportion to their location upon the pulverizer as they approach the center of the latter.

Another object of my invention is to construct the sectional rolls of the pulverizer in such manner that they will be capable of crushing the soil in a more eective manner than heretofore and will be of rigid and compact formation.

A A still further object of the invention is to provide means for maintaining the series of sectional rolls in alinement upon the shaft regardless of the amount and nature of the work that the machine is subjected to and for reducing the friction between the roll-sections and between the roller proper and the frame of the machine,whereby the life of the pulverizer is prolonged and an exceedingly easy-riding and eectively-operating machine is obtained.

To accomplish the objects above enumerated, each roll-section is formed of two heads or spiders at some distance apart, upon the peripheries of which are arranged a seriesof spaced cross or crusher bars. Each headportion of the .roll has a series of semicircular indentations formed in its periphery, said indentations being the same in number in each roll-head and of considerable depth, and the cross-bars arranged transverselyof the heads are mounted in alternate pairs of the indentations. Thus a requisite amount of spacing is obtained for the purpose of letting the soil pass between the bars, and the construction of the several rolls is suchthat the entire weight of each roll, together with the additional weight of the frame, is directly brought to bear upon the crusher-bars, whereby the act of crushingiseffectively performed. p Moreover, by seating the cross-bars in the heads iu the manner set forth a bearing of such character is formed for the same that the liability of the bars being broken olf, cracked, or torn from their supports is reduced to a minimum.

The means employed for accomplishing the last obj ect of myinvention comprise elongated hubs of considerable diameter formed upon the spiders of each roll, which afford a sufficient bearing for the roll-sections upon the shaft to insure their being constantly in alinement, and by forming bearing-faces upon the extremity of the hubs and upon the inner portions of the shaft-supports the friction between the parts may be reduced to a minimu1n,while at the same time a compact structure is obtained.

Having thus set forth the several objects sought to be accomplished and described generally the means for carrying out said objects, my invention consists in an improved soil-pulverizer the formation of which will be more particularly described, and shown in the accompanying drawings, in which Figure l is a front elevation of my iinproved soil-pulverizer, illustrating the manner in which the rolls are arranged within the frame. Fig. l2 is a side elevation of the pulverizer; and Fig. 3 is a section taken on line Fig. 2-, showing the detailed construction of a portion of one 'of the roll-sections.

While I have shown the roller proper of my improved soil-pulverizer to consist of but three sectional parts, it is to be understood thatthis isamachine of minimum size adapted for use in places where an ordinary-sized pulverizer could not be conveniently operated. In the ordinary machine adapted for regular field-work five and six sectional rolls constitute the roller proper of the pulverizer. Referring to the drawings, the numeral 1 represents a pulverizer-frame which is rectangular in configuration, 4being formed of longitudinal bars 8 and transverse bars 9.

The numeral 10 designates the draft-bar. Upon the sides of the rectangular frame',

supporting brackets or hangers 2, in which are formed bearings 11X. IVithin these bearings is arranged a transverse shaft 3, which is secured within said bearings in any suitable manner. Upon said shaft are mounted a series of sectional rolls which constitute the roller proper of the pulverizer. Each roll, as generally stated above, comprises two heads or ends in the form of spiders 5, and these are connected to each other by the parallel cross bars or rods 6. The periphery of each head has a series of semicircular indentations l1 formed therein, the indentations beeach alternate pair of indentations a cross bar or rod, such as 6, is mounted, the roll,-

with its parts, being cast in one piece. By this construction a rigid and compact sectional roll is formed, the head portions of which are cut away in such manner that only the cross-bars come in contact with the ground, whereby they are enabledto fully perform their function of crushing, as the Weight is carried entirely by said bars and not in any manner by the rims of the heads.

In order that a more rigid structure may be obtained and a better bearing formed for the cross-bars, I provide each head of the sectional roll with an inwardly-extending annular ange 12, whereby a wide periphery is obtained yin which the indentations are formed. This insures the cross-bars from be.- ing broken or torn from their supports while the machine is in operation.

elongated hub 13, and upon the outwardlyprojecting portion of the hub a fiat bearingface 14 is formed. The sectional rolls are arranged upon the shaft in such manner that the meeting ends of the hubs will abut against each other, and the ends in proximity to the hangers 2 will bear against similar faces 15, formed for that purpose upon the inner portions of. the supports. Thus means are provided whereby a proper bearing is had for the roll-section upon the shaft, insuring a constant alinement, and the friction between the roll-sections and likewise between the roller proper and the depending supports `is reduced to a minimum.

On account of the elongated hubs that I employ for purposes that are hereinbefore set forth I form the cross-bars of such length as to extend beyond the heads in each direction la distance to nearly cover the extensions of the hub. By this arrangement I obtain the maximum amount of crushing-surface for the machine.

It will be observed from the construction of the machine as thus set forth that a compact structure is formed the parts of which are not liable to become loose or broken and :that the movable parts are adapted to rotate with perfect ease and freedom.

depending from the longitudinal bars, are

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a soil-pulverizer, the combination with a frame, of a transverse shaft j ournaled therein, and a roller carried by the shaft, said roller comprising `a series of independently-mounted roll-sections of narrow widths, said sections each having a pair of spiders supporting jon their outer peripheries parallel bars with spaces between them, said bars interconnect- :ing said spiders and projecting beyond said fperipheries, substantially as shown and described.

ing the same in number in each head, and in 2. In a soil-pulverizer, the combination with ,a fram e, of a transverse shaft journaled thereiin, and a series of roll-sections mounted upon the shaft for independent rotation; each roll comprising two head-sections, having formed 1in their peripheries a series of semicircular indentations and a series of cross-bars connecting the head-sections, the cross-bars bea ling arranged one in each alternate pair of indentations, substantially as and for. the pur 1poses described.

3. In a soil-pulverizer of the kind described,

`a roll-section comprising two heads or ends, Eeach having formed thereon adjacent to its Lperiphery, an inwardly-extending annular `iange, and having a series of semicircular indentations formed in said periphery and fiange, and a series of cross-bars connecting the heads; the cross-bars being arranged one in each alternate pair of indentations, substantially as and for the purpose set forth. Each spider or roll end is provided with an 4. In a soil-pulverizer, the combination with a supporting-frame, of a shaft-hanger depending from each side of the frame, abeari ing-face formed upon the inner side of each hanger in proximity to its free end, a trans-v verse shaft arranged within the hangers, a

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circular indentations formed therein, a series of cross-bars connecting the heads, said bars being arranged one in each alternate pair of indentations, as described, and eX- tending some distance beyond each head, elongated hubs carried by the sections, centrally of their ends, and bearing-faces formed upon the meeting ends of the hubs, allarranged and constructed in the manner and for the purpose set forth. xo

In testimony that I claim the above I hereunto set my hand.

EDWIN E. PORTER. In presence of- C. P. I-IUMPHREY, ORIsoN M. SMITH. 

